Indicating mechanism



E. E. KLEINSCHMIDT.

INDICATING MECHANISM. APPLICATION FILED JUNE 21, 1920.,

Patented June 13,1922.

2 SHEETSSHEET I.

WITNESS" ATTORNEY5 E. E. KLElNSCHM-IDT.

INDICATING MECHANISM.

APPLICATION FILED JUNE 21, 1920.

2 SHEETSSHEET 2 Patented June 13, 1922.

WE INVENTOR Q BY Mod/f V! M ATTORNEY \R b ww Q.

{QM kw \N \N m 9, M m Kw x UNITED STATES EDWARD E. KLEINSOI-IMID'I, OF BROOKLYN, NEW YORK, ASSIGNOR TO KLEINSCHMI'DT PATENT OFFICE.

ELECTRIC COMPANY, INC., A CORPORATION OF NEW YORK,

INDIOATING MECHANISM.

Specification of Letters Patent.

Patented June 13, 1922.

Application filed June 21, 1920. Serial No. 390,599.

T all whom it may 00 ncern:

Be it known that I, EDWARD E. KLEIN- SCHMIDT, a citizen of the United States, residing in New York, borough of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Indicating Mechanism, of which the following is a specification.

The present invention relates to an indicator, which is particularly applicable to a perforating machine, comprising a keyboard mechanism by which perforations are produced in a tape, although it will be understood that the invention is not limited to this particular use.

The invention will best be understood by reference to the accompanying drawings, in which I have illustrated a preferred embodiment, and in which Fig. 1 is a plan view of a device comprising an indicating mocha-V nism; Fig. 2 is a front elevation with the front plate of the machine removed, and illustrating the parts immediately operated by the key bars of the machine; Fig. 3 is a side elevation similar to Fig. 2, but taken at right-angles thereto; Fig. 4 is a detail view illustrating a connection between one of the operating bars and the indicating mechanism, and Fig. 5 is a detail view illustrating the relation of one of the key bars to that operating bar which brings about the operation of the indicating mechanism.

Like reference characters indicate like parts throughout the drawings.

Referring now to the drawings, 5 is a part of the frame of the machine provided with side plates (5 and a top plate 7. The machine is provided with a plurality of key bars 8 provided with finger pieces 9 at their ends, the key bars being pivoted at 10 on standards 10, and normally held in their elevated positions, by suitable springs 11. Immediately beneath the key bars 8, and extending transversely thereof, are the operating bars 12, which preferably are generally in the form of a T, and the first five of which at the left, as viewed in Fig. 3, may be used for perforating the tape, the sixth, which is indicated by the reference numeral 12, being used for operating the indicating mechanism, and the last 12 at the right being utilized for the purpose of closing a circuit to an operating magnet for the perforating mechanism, or for performing any other suitable operation. The present invention relates only to the indicating mechanism, and I have not, therefore, shown the mechanism by which the perforating mechanism is actuated by the various operating bars 12, and the parts associated with the operating bar 12*.

Referring now particularly to Fig. 2, that operating bar which brings about the actuation of the indicating mechanism, and which I have indicated by the reference numeral 12, is also in the form of a T-bar, the down wardly extending part 13 of the bar being linked to a standard 14:. In order to produce parallel motion of the T-bar 12 when depressed, the same is pivoted to the standard 14 by two parallel bars 15 and 16, which are pivoted to the arm 13 of the T-bar at 17 and 18, and to the standard M at 19 and 20, respectively, the parts joining the pivots 17, 1.8, 19 and 20 forming a parallelogram. The bar 15 is preferably provided with an extension 15 beyond the pivot 19 to which is attached a coiled spring 21, which normally retains the T-bar in its elevated position. The lower sides of the T-bars 8 are provided with a notch or notches 22 and 23, as illustrated in Fig. 3, which register with certain operating bars, so that the operating bars are depressed in various combinations by the various key bars to produce the desired rec ord on the tape, the mechanism for producing which is shown in a copending applica tion, Serial No. 311,328, filed on or about July 16, 1919, for key-board tape perforator to which reference may be had for details which constitute no part of the present invention. T o the extension 15 of the arm 15 is pivoted at 24c the lower end of a link 2d, the upper end of which is pivoted at 25 (see Fig. 41) to one arm of a bell-crank 26 which is, in turn, pivoted at 27 to the frame. To the other arm of the bell-crank is pivoted at 28 one end of a link 29, the opposite end of which is pivoted at 30 to one arm 31 of a bell crank 31 pivoted at 32. A ratchet wheel 33 is mounted on the same hearing as the arm 31, and is actuated, in the form here illustrated, by a pawl 34'pivoted at 30 on the arm 31 and normally held in engagement with the ratchet 33 by a spring 35 attached to an arm on the pawl and to the second arm 31 of the bell crank 31. The movement of the bell crank 31 is limited by an adjustable stop 36, which is here illustrated as of the eccentric type. A retaining pawl 37 is heldin engagement with the ratchet 83 by a spring 38. A pinion 39 is mounted on the shaft 32 of the ratchet 38 and engages a toothed segment 40 of an indicator arm 41 pivoted at 42 on one end of a lever 43, which is, in-turn,pivoted at 44, spring 45 attached to the arm 43 normally forcing the segment 40 into engagement with the pinion 39. The end of the arm 41 extends to a position where it is visible to the operator, and in the embodiment here shown, through a circular rim 46 anddisposed above the dial-plate 47 provided with calibrations, as at 48. The gear ing and connection between the operating bar and the indicating mechanism is such as to move the hand or pointer 41 forwardly over the dial-plate the distance between two successive calibrations each time the operatin bar 12" is actuated.

Vhen the pointer 41 has arrived at the end of the scale, it affords the operator an indication of the fact that such a number of perforations have been made in the tape that, when the tape is passed through a transmitter, as it would be in the case of a printing telegraph system for example, it will actuate a suflicient number of the character keys in an ordinary typewriter to fill the line, and that it is, therefore, desirable to produce in the tape a carriage-return perforation. In order to afford the operator an additional indication that a carriage return perforation should be made, a lever 49 is pivoted at 50 on the frame of the machine and isnormally held against a stop 51 by a spring 52, as indicated in Fig. 1. The arm 49 is arranged, generally, longitudinally of the movement of the pointer 41, and the end of the lever 49 which faces the pointer is tapered as at 53, this part beingadapted to be engaged by a laterally projecting pin 54 (shown in dotted lines in F 1) on the pointer 41. VV hen this takes place, thearm 49 is moved away from the stop 51, and when the pointer reaches a position over the end of the scale, a downwardly extending insulated projection 49 which is secured to the opposite end of the arm 49 engages a contact finger 55, which is normally separated from a contact finger 56, and brings the two contact fingers into engagement. The contacts 55 and 56 are included in a circuit, the conductors of which are indicated at 57 and a source of energy, such as a battery is indicated at 58. A lamp or other signal 59, which is to give the operator an indication of the fact that the pointer has reached the limit of its movement, may conveniently be positioned at the front of the keyboard, as indicated.

I will now describe the mechanism by which the pointer or indicator hand 41 is erating bar 12 is actuated only by what are commonly known as the character keys, that is, those keys which, when operated, produce a perforation in the paper which will bring about a line space of the carriage.

The operating bar 12 is not actuated by the carriage-return key or other keys which do not bring about a movement of the carriage For the purpose of releasing the indicating mechanism in the embodiment of my invention here illustrated, an elbow lever 60 Fig. 3 is pivoted at 61 to the lower end of the projection 13 of the carriage-return key bar 8. An upwardly extending arm 60 of the elbow lever isdisposed adjacent to the free end of the lever 43 on which the pointer 41 is pivoted, while the opposite end of the elbow lever is disposed above an adjustable stop, such as a screw 62, secured to a bracket 63. Now, when the carriage-returnkey '8" is depressed, the arm 60 of the elbow lever engages the screw 63 and moves the upper arm 60 of the elbow to the right, as viewed in Fig. 3, thus moving the lever 43 in a direction to disengage the segment 40 from the pinion 39. The pointer is thereupon immediately returned to its zero position against an eccentric stop 64 by a spring 65.

The operation of the device embodying my invention will readily be understood from the foregoing description and is as follows: When any of the key bars which produce perforations in the tape, which, when run through a transmitter, will produce in the printer line spacing of the carriage, are depressed, the operating bar 12 is correspondingly depressed, the link 24 lifted, and the link 29 moved in a direction to rotate the ratchet As soon as the key bar has been released, the link 29.is returned by a spring 29. The operationof the ratchet brings about the movement of the pointer 41 to the next-calibration of the dial, where it is retained by the pawl 37. When the indicator 41 arrives at the position over the end of the dial, a lamp 59 is lighted and on the depression of the carriage-return key, the segment 40 is released from the pinion 89, and the pointer 41 is re turned to its zero position in the manner described.

It will be noted that in accordance with my invention the rotary member 33, which is here illustrated as a ratchet, is moved only in one direction and that the indicating mechanism is moved forwardly and back wardly by bringing the same into, or out of, operative connection With the rotary member.

What I claim and desire to secure by Letters Patent of the United States is:

1. In a keyboard mechanism for a printing telegraph, an indicator comprising an operating bar actuated by the keyboard, a rotary member, mechanism connected to the operating bar for turning the rotary member step by s 'ep, an indicating member actuated by said rotary member, and means to disengage the indicating member from the rotary member to permit its return movement imlependently of the rotary member.

2. In a machine for perforating and the like, keyboard mechanism comprising key bars and an operating bar actuated by the key bars, an indicator mechanism comprising a rotary member, means for rotating said member in response to the actuation of said operating bar, an indicator connected to be moved forwardly by said rotary member, and means for disconnecting said indicator from said rotary member to permit its return movement independently of said member.

In a machine for perforating and the like, keyboard mechanism comprising key bars and an operating bar actuated by the key bars, an indicator mechanism comprising a ratchet Wheel, means for rotating said ratchet in response to the actuation 01 said operating bar, an indicator arm comprising a segment operable in response to the movement of said ratchet, and means for disconnecting said segment from said ratchet and returning the same after a predetermined movement of said arm.

4.. In a machine for perforating and the like, keyboard mechanism comprising key bars and an operatin bar actuated by the key bars, an indicator mechanism comprising a ratchet Wheel, means for rotating said ratchet in response to the actuation of said operating bar, an indicator arm comprising a segment operable in response to the movement of said ratchet, and means for disconnecting said segment from said ratchet and returning the same after a movement of said arm in extent corresponding to the operation of a suliicient number of character keys to till a line.

5. In a machine for perforating and the like, keyboard mechanism comprising key bars and an operating bar actuated by the key bars, an indicator mechanism comprisinga rotary member, means for rotating said member in response to the actuation of said operating bar, an indicator connected to be moved forwardly by said rotary member, and means operable by the carriage-return key for disconnecting said indicator from said rotary member and returning the same after a predetermined movement of said indicator.

6. In a machine for perforating and the like, keyboard mechanism comprising key bars and an operating bar actuated by the key bars, an indicator mechanism comprising a rotary member, means for rotating said member in response to the actuation of said operating bar, an indicator comprising a segment operable in response to the movement of said rotary member, a lever on Which said indicator arm is pivoted, means for yieldingly maintaining said segment connected to said rotary member, means operable by the carriagereturn key for actuating said lever and thereby disconnecting said segment from said rotary member, and means for returning said indicator.

7. In a machine for perforating and the like, keyboard mechanism comprising key bars and an operating bar actuated by the key bars, an indicator mechanism c0mprising a rotary member, means for rotating said member in response to the operation of said bar, an arm connected to be moved forwardly by said rotary member, a dial over which said arm moves, and means for disconnecting said indicator from said rotary member and returning the same after a predetermined movement of said indicator.

8. In a machine for perforating and the like, keyboard mechanism comprising key bars and an operating bar actuated by the key bars, an indicator mechanism comprising a ratchet, means for rotating said ratchet in response to the operation of said bar, a pinion rotatable with said ratchet, an indicator provided with a toothed segment meshing with said pinion, and means for disconnecting said segment from said pinion and returning the same after a predetermined movement of said arm.

9. In combination, an indicator comprising an operating bar, a rotary member, mechanism connected to said operating bar for turning said rotary member step by step, an indicating member actuated by said rotary member, and means to disengage said indicating member from said rotary member to permit its return movement.

EDWVARD E. KLEINSCHMIDT. 

